| Pia to Popovo | 1,174.02 mi (1,889.41 km) |
| Pia to Provadia | 1,235.31 mi (1,988.05 km) |
| Pia to Radnevo | 1,168.63 mi (1,880.72 km) |
| Pia to Radomir | 1,015.59 mi (1,634.44 km) |
| Pia to Rakitovo | 1,078.83 mi (1,736.21 km) |
| Pia to Rakovski | 1,119.93 mi (1,802.35 km) |
| Pia to Razgrad | 1,186.89 mi (1,910.12 km) |
| Pia to Razlog | 1,048.83 mi (1,687.92 km) |
| Pia to Ruse | 1,157.15 mi (1,862.26 km) |
| Pia to Samokov | 1,048.22 mi (1,686.94 km) |
| Pia to Sandanski | 1,043.54 mi (1,679.41 km) |
| Pia to Sevlievo | 1,120.41 mi (1,803.12 km) |
| Pia to Shumen | 1,209.50 mi (1,946.51 km) |
| Pia to Silistra | 1,220.47 mi (1,964.16 km) |
| Pia to Sliven | 1,184.74 mi (1,906.65 km) |
